baber/WOPTO huggingface dataset:
Patent GB-1254793-A (GB)
Title: Improvements in or relating to pretensioned elevated track and cable structure
Inventor: HARBERT ARNEY J
IPC: E01B25/22
Filed: 1969-01-30
Abstract: 1,254,793. Elevated railways. TRANSPORTATION SYSTEMS Inc. 30 Jan., 1969 [5 Feb., 1968], No. 5269/69. Heading B7L. [Also in Division E1] In an elevated railway comprising catenary cables 20 extending between towers 12 and supporting rails 10 by means of suspender cables 23, the arrangement is such that the rails are deflected upwardly between the towers 12 with the upper surfaces thereof in tension at the central portion of each span. Under the load of a vehicle the rails become rectilinear. The rails are interconnected by tie-cables 25 and are connected to stability cables 22 by cables 24. At curves the towers 12<SP>1</SP> carry outer extensions 38 between which is strung an auxiliary support cable 42 connected to the outer catenary cable 20 of the curb by cables 44, the outer catenary cable being connected to the inner catenary cable by cables 44<SP>1</SP>. Auxiliary cables 40 interconnect the auxiliary support cables 42.
Patent GB-806655-A (GB)
Title: Process for the production of colourless polyolefines
IPC: C08F6/02
Filed: 1956-02-21
Abstract: Polyolefins obtained by the Ziegler process are treated with dilute solutions, e.g. up to 1 per cent concentration, of mono- or poly-hydric alcohols of boiling-point above 100 DEG  C.; specified compounds being cyclohexanol, ethylene glycol, glycerine and sorbitol.  The treatment may be applied at any stage of the working up, e.g. the high boiling alcohol may be present during washing with a low-boiling alcohol, such as methanol or isopropanol, or during the subsequent water washing.  The polymers such as polyethylene and polypropylene may be obtained using catalysts comprising aluminium alkyls and titanium and zirconium tetrachlorides, and media such as cyclohexane and hydrocumene.  After treatment the polyolefins remain colourless at high temperatures.
Patent GB-558422-A (GB)
Title: Improvements in or relating to induced draught fans and the cleaning of dust laden air or gas
IPC: F04D29/70
Filed: 1942-04-22
Abstract: 558,422. Centrifugal air cleaners STURTEVANT ENGINEERING CO., Ltd., and STEDMAN, N. S. April 22, 1942, No. 5405. [Class 23] [Also in Group XXVI] Fan blades 1 are carried on a conical back-plate 8 which runs in an aperture in a partition 9. Air to be cleaned is drawn in by the fan through the eye 13, the cleaned air is delivered to the volute 2 and the separated dust-laden air is delivered to the chamber 3. From the chamber 3, it passes to a cyclone separator and the cleaned air from the cyclone is returned to the inlet of the fan. The degree of separation is varied by an axial adjustment of the rotating parts relative to the partition 9. The eye 13 has an adjustable sleeve 6 which is moved when the rotor is adjusted to keep the eye in proper relation to the rotor.
Patent GB-162462-A (GB)
Title: Improvements in buildings
IPC: E04H1/02
Filed: 1920-02-23
Abstract: 162,462. Trobridge, E. G. Feb. 23, 1920. Columns.-To reduce floor or roof space in the construction of dwelling- houses, ceiling, roof or floor supporting pillars 2 are used as structural elements and also as supports for beds. One end of the bed 1 rests on a projecting part of the floor and wall, thus g i v i n g additional space to the room below while the other end is bolted or otherwise secured to two wooden pillars 2 which serve also as supports for the ceiling 3 or roof. Struts or strainers 4 may be provided. In some cases the pillars are made of brick and carry flues 8, 9.
Patent GB-1142971-A (GB)
Title: Rectifier apparatus
Inventor: BERRY KENNETH
IPC: B60L9/12
Filed: 1967-02-03
Abstract: 1,142,971. Rectifying. ENGLISH ELECTRIC CO. Ltd. 30 Jan., 1968 [3 Feb. 1967], No. 5454/67. Heading H2F. Rectifying apparatus comprises a transformer 10 having two antiphase windings 11, 12 supplying respective bridges 13, 14 of rectifiers having reactors 15, 16 common to both bridges and a D.C. load (such as a traction motor 17) connected as shown. Each reactor 15, 16 passes uni-directional current from windings 11, 12 alternately and functions to smooth the rectified current and to reduce excess current caused by a fault in any bridge arm. The rectified current may be controlled by variation of the conduction angle of the two thyristors T1 . . . T4 connected in each bridge. Alternatively diode bridges may be employed with tap-changing transformers. Each bridge arm may comprise a series/parallel arrangement of rectifiers. D.C. current transformers 18, 19, 20 are included so that a circuit breaker (not shown) can be tripped to isolate one of the bridges 13, 14 in the event of unbalance between the two reactor currents. The effect of the diodes D1 . . . D4 and reactors 15, 16 on the commutation of thyristors T1 . . . T4 is described.
Patent GB-230617-A (GB)
Title: Improvements in and relating to the utilisation of temperature differences
IPC: A63H3/06
Filed: 1924-03-03
Abstract: 230,617. Menzies, T. G., (Menzies, A. W. C.). March 3, 1924. Philosophical instruments.-Periodic pulsations of a fluid in a closed system are produced by maintaining a temperature difference between parts of the system. Fig. 1 shows a device consisting of a tube 1 having a vapour chamber 2 at one end and a reservoir 3 at the other end, the reservoir being partly filled with volatile fluid 5 a portion 6 of which overflows into the tube 1 and forms a seal. The reservoir is surrounded by a wick &c. 7 dipping into liquid 9 and thus becomes cooled by the evaporation of this liquid. The higher vapour pressure in the part 2 causes the thread 6 to move along the tube until it begins to enter the reservoir, when the seal is broken and the pressures on the two sides equalized. The thread now moves back under the action of gravity, the tube being sloped downwardly towards the warmer end, and this reciprocatory motion continues so long as the temperature difference is maintained. Fig. 3 shows the device incorporated in a toy, the head being loose to act as a plug, and carrying the tube, reservoir, and wick.
Patent GB-239120-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1924-05-31
Abstract: 239,120. Hay, G. S. May 31, 1924. Emulsions, making.-Bituminous emulsions are prepared by mixing with liquid or molten bituminous materials heated to 175-230‹ F. a proportion (up to about 10 per cent) of an emulsifying agent comprising a gum or gums, and water, with or without an aqueous solution of alkali; the gum may be replaced in part by fatty acid, sufficient alkali being added in this case to neutralize the fatty acid. The gum may be dissolved in alkali solution and the solution incorporated with the bituminous material, or alternatively the gum may be dissolved in water, in a dilute acid solution, or in a volatile solvent. According to one example, asphalt melted at a temperature of 220-230‹ F. is treated with a solution of gum acacia in caustic soda, after which boiling water is added and the mixture agitated until emulsification is complete. Other examples describe the replacement of part of the gum by oleic acid and the use of gum tragacanth dissolved in acetic acid, of agar-agar dissolved in caustic soda..and in water, and of gum arabic dissolved in alcohol. The process may be modified by (1) using, in place of caustic soda, other alkalies such as caustic potash or sodium or potassium carbonate or silicate, (2) mixing the ingredients in a cold state, and (3) varying the order or manner of mixing, as by adding the alkali before the emulsifying agent or by adding the bitumen to the emulsifying agent. One of the Provisional Specifications refers to Specification 230,177 and describes the production of bituminous emulsions with the use of organic colloids, particularly starch, as emulsifying agents.
Patent GB-565974-A (GB)
Title: Improvements in or relating to hydrocarbon interpolymers and the manufacture thereof
IPC: C08F210/12
Filed: 1940-03-29
Abstract: The process of the parent Specification is modified in the following respects: (1) isobutylene (95 to 99 1/2 parts) and isoprene (5 to 1/2 parts); (2) isobutylene (98 to 99 1/2 parts) and pentadiene-1,3 (2 to 1/2 parts); (3) isobutylene (90 to 99 1/2 parts) and 2,3-dimethyl butadiene-1,3 (10 to 1/2 parts) are copolymerized at a temperature below -50 DEG  C. in the presence of aluminium chloride; (4) the diolefine used is cyclopentadiene, hexadiene-2,4, trimethyl or tetramethyl butadiene; (5) the diolefine used is butadiene and the iso-olefine is 2-ethyl-butene-1; (6) as in (4) above in which the iso-olefine is 2-methyl-or 2-ethyl butene-1; (7) the catalyst is aluminium bromide, stannic chloride, titanium tetrachloride, zirconium chloride or uranium chloride dissolved in methyl or ethyl chloride; (8) as in (7) above, in which the catalyst solution is freed from hydrogen chloride before use; (9) the catalyst is quenched by adding to the reaction mixture ethyl or isopropyl alcohol, ethylene glycol or monoethyl ether; (10) the diolefine is chilled to a liquid condition, the catalyst solution is added before polymerization starts and the iso-olefine in liquid condition is admixed; (11) the copolymer is mixed with a vulcanization accelerator having the formula <FORM:0565974/IV/1> where R and R1 are organic radicals, x and y are integers and M is a metallic radical, or <FORM:0565974/IV/2> where R, R1, R2 and R3 are organic radicals and x is an integer, preferably 2, with or without sulphur or other fillers and the mixture is vulcanized.  Accelerators specified are zinc dimethyl and dibutyl dithiocarbamates, selenium tetraethyl dithiocarbamate, tetramethyl thiuram mono- and di-sulphides and dipentamethylene thiuram tetrasulphide.  Suitable fillers are clay, limestone dust, powdered silica diatomaceous earth, whiting, zinc oxide, titanium dioxide, iron oxide and carbon black.  Other optional additions include plasticizers, e.g. paraffin wax, petrolatum, mineral oils and dibutyl phthalate; cellulose esters and ethers; solvents, e.g. naphtha, carbon tetrachloride and ethylene dichloride; rubber cyclo-rubber and rubber hydrochloride; natural gums and resins, e.g. rosin, synthetic resins, e.g. polyindenecoumarone, polyvinyl acetate, polystyrene, polyacrylates, polyethylene, polyvinyl - acety - lene, polydihydro - naphthalene, polyamides, phenol-aldehyde, alkyd, ester gum, urea or thiourea-aldehyde and aromatic hydrocarbonformaldehyde resin; stearic acid; factice; dyes and antioxidants.  The polymers may be chlorinated.  They may be modified by addition of vinyl alcohol or chloride before or after curing.  The products may be mixed alone or in emulsion with asphalt, waxes and cements.  The polymers may be produced in sponge-like form. A large number of applications of the product are given, mainly as substitutes for rubber, e.g. for coating and impregnating, adhesives and acid-resistant articles.  Specifications 509,463, 540,285 and 543,308 are referred to.
Patent GB-264783-A (GB)
Title: Improvements in a method for producing stiff fabries which stand washing
IPC: D06M11/55
Filed: 1926-03-01
Abstract: 264,783. Akt.-Ges. Cilander. Jan. 21, 1926, [Convention date]. Artificial silk, fabrics containing.-A fabric is produced from artificial silk and other fibres and the artificial silk content is stiffened by treatment at ordinary temperatures with an inorganic acid e.g. sulphuric, hydrochloric, nitric, or phosphoric. The other fibres may be animal or vegetable or mixed.
Patent GB-881105-A (GB)
Title: Process of and apparatus for transmitting heat between gaseous media
Inventor: KUN LASZLO
IPC: F28C3/14
Filed: 1958-02-21
Abstract: 881,105. Thermal regenerators. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Feb. 21, 1958, No. 5777/58. Class 64(1) In a thermal regenerator in which heat exchange is effected between flowing gaseous media by means of a circulating granular susbtance of grain size between 0À1 and 1 mm., the granules flow in a part of the circuit either by gravity against the flow of heating gas, e.g. furnace flue gas, or by entrainment with said gas, and in other parts of the circuit by entrainment with flowing gases to be heated such as combustion air and fuel gas for the furnace. The flow of granules may be maintained by a blower as shown and in Fig. 3 (not shown), or by the speed of the furnace flue gases (Fig. 5 not shown) or by the pressure of furnace fuel gas (Fig. 4 not shown), and may be controlled in accordance with predetermined requirements by thermostatic regulation of the fan speed, or by a valve regulating the pressure differential between different heat transfer zones of the circuit (Fig. 16 not shown). Fig. 2 shows one form of plant in which the granules absorb heat from furnace flue gases in chamber I and give up this heat to fuel gas and air in chambers II and III respectively before passing through a duct 16 to a pneumatic elevator duct 8 to which air is supplied by a blower 7, this air ultimately being heated in chamber III. The duct 8 opens into a distributing chamber 9. Grains of varying size pass into the duct 8 and grains of appropriate size depending upon the prevailing plant loading which controls the blower speed, pass from chamber 9 into a duct 10 for circulation to the regenerator chambers I, II, III. Grains above the required size fall back down the duct 8 into collecting boxes 11, 12. Grains below the required size are carried through the chamber 9 to a separating chamber 25 from which they are conveyed, sorted into various sizes, into respective grain containers 47, 48, 49. Grains of required size are passed when necessary ,by appropriate manual operation of valves 51, 52 or 53, from containers 47, 48 or 49 to a duct 50 leading into the duct 16 carrying cooled grains back to elevating conveyer duct 8. By means of a reservoir 20 having an observation window 26 an adequate quantity of granules may be maintained in the system, grains from the reservoir passing through a valve controlled duct 27 into the duct 16. The reservoir is supplied through a pipe 28 and a filling aperture 29. Removable filters 42, 43 are provided at the lower ends of the respective heat exchange chambers I, II and III. The heating gas may, before being contacted and cooled by the circulating granules, be partially cooled in a supplementary circuit of granules, these either passing into the main stream of granules, or, if relatively small grains are used, continuing to circulate in their own separate circuit and heating the main granules by contact and radiation in the chamber I (Fig. 10 not shown).
Patent GB-139503-A (GB)
Title: Improvements in roasting or drying apparatus
IPC: A23N12/10
Filed: 1920-02-26
Abstract: 139,503. Savy, E. Dec. 17, 1913. [Convention date]. Void [Published under Sect. 91 of the Act]. Thermometers.-The temperature of the drum R of an apparatus for roasting or desiccating cocoa, grain, &c. is regulated by the adjustment of an air-inlet valve by an electric motor which is controlled by a thermometer 3. The thermometer extends into a hopper 4 which, rotating with the drum, receives a fresh supply of the material under treatment at each revolution.
Patent GB-572398-A (GB)
Title: Improvements in and relating to devices for stripping electric cables
IPC: H02G1/12
Filed: 1944-03-30
Abstract: 572,398. Stripping cables. DORMAN & SMITH, Ltd., and ATHERTON, T. March 30, 1944, No. 5866. [Class 36] Apparatus for stripping cables comprises two members 7, 14 each carrying a pair of recessed blades 8, 16, the former enclosing a longitudinal blade 9 so that the cable insulation is cut twice circumferentially and once longitudinally. The apparatus can also be used for stripping a cable end. Member 7 is carried by a handle 6 to which member 14 is pivoted at 15, a handle 18 being pivoted to member 14 at 17. Handles 6, 18 are connected by a link 21 with pivots 20, 22, the latter being adjusted within a slot 12 by a - screw 10. A spring 13 draws the handles together and forces pivot 22 against screw 10, which adjusts the degree of closing of the blades. The link 21 has an abutment 23 which engages handle 18 to produce a toggle effect. The Provisional Specification states that the degree of closing may be varied by adjustable stops at the tops of the blades.
Patent GB-1456903-A (GB)
Title: Frequency synthesizer
IPC: H03L7/191
Filed: 1974-02-08
Abstract: 1456903 Automatic frequency control INTERNATIONAL STANDARD ELECTRIC CORP 8 Feb 1974 [21 Feb 1973] 05877/74 Heading H3A A frequency synthesizer comprises: a voltage controlled oscillator 1 whose frequency is F A ; a divider 2 producing an output f A  = F A /N; a frequency comparator 5, e.g. of the type described in Specification 1,439,015 receiving the signal f A  and a reference signal f B  to produce a first error signal for controlling the oscillator 1; and a sampling-type phase comparator 10 receiving the signal f A  and a second reference signal mf B  to produce a second error signal for controlling the oscillator 1. The phase comparator 10 is of the type in which FET 16 is controlled by signal f A  to sample a ramp signal generated by 12 ... 15, the ramps being generated at a rate mf B . The signals f B  and mf B  may be generated by a higher frequency source 8 followed by a divider 7. The signal mf B  is shaped by a pulse shaper 9, an alternative form of which, using a bi-stable (21), is described with reference to Fig. 2 (not shown).
Patent GB-1131343-A (GB)
Title: Surface treating appliances
IPC: A47L11/32
Filed: 1966-02-11
Abstract: 1,131,343. Floor cleaning machines. HOOVER Ltd. 11 Feb., 1966 [15 Feb., 1965], No. 6133/66. Heading A4F. In a floor polishing or scrubbing machine the electric motor 14 driving the polishing or scrubbing brushes 22 also drives a fan 30 which draws cooling air through the motor casing 15 and directs it through a restricted passageway 82 to impinge upon liquid wax or detergent dripping from a supply tube 76 connected to a reservoir 85 (not shown). The wax or detergent is thus foamed before being applied to the floor surface by the brushes 22.
Patent GB-1049412-A (GB)
Title: Improvements in or relating to electric circuits for use in signalling systems
Inventor: STANLEY BRIAN ANTHONY
IPC: H04J1/06
Filed: 1964-02-14
Abstract: 1,049,412. Multiplex systems. GENERAL ELECTRIC CO. Ltd. Feb. 8, 1965 [Feb. 14, 1964], No. 6257/64. Heading H4R. In the connection of a common circuit such as a transmission line to a number of individual circuits passing different frequency bands, impedance-matching is obtained by the provision of like series resistors in the individual circuits. In a multichannel system, the channel filters 28, 31, 34 apply signals to the transmitting amplifier 25 through resistors 29, 32, 35, while the receiving amplifier 1 feeds the channel filters 7, 10, 13 through resistors 5, 8, 11. A similar arrangement may be used for connecting a number of oscillators to a common amplifier.
Patent GB-193290-A (GB)
Title: Improvements in and relating to portable and adjustable screeds for use in road-making and for like purposes
IPC: E01C23/01
Filed: 1922-03-03
Abstract: 193,290. Waithman, C. H. March 3, 1922. Surface gauges.-A levelling-screen for roads comprises removable uprights 8 driven into plates 9 on the surface of the road, and a flexible steel lath 1 supported on the tops of these uprights able in its length to suit different widths of road so that its height may be varried according to the camber required. The lath is also made adjust- One end of the lath is turned. down so as to be self-supporting, while the other end may be shaped to embrace a tram rail.
Patent GB-1170698-A (GB)
Title: Process for Stabilising and Increasing the Activity of Raney Catalysts
IPC: H01M4/98
Filed: 1968-02-08
Abstract: 1,170,698. Raney catalysts. SIEMENS A.G. 8 Feb., 1968 [9 Feb., 1967], No. 6401/68. Heading B1E. [Also in Division H1] Raney catalysts conventionally prepared by dissolving out an inactive constituent from a Raney alloy using an alkali-metal hydroxide solution is stabilised and activated by treatment with an aqueous solution HCl and FeCl 3 . The treatment may be effected at 30-100‹C in an inert atmosphere.
Patent GB-249995-A (GB)
Title: A garment for leg wear
IPC: A41D17/02
Filed: 1925-03-09
Abstract: 249,995. Morgan, A. G. March 9, 1925. Leggings. - A legging loose on the leg is supported by means of a separate garter F which may be attached to the leggings by tags E and press studs E<1>. The legging is provided at its base with a spring clip C and at its top with a series of fastenings D on overlapping parts of the legging. The garter may be provided with a series of press fastening elements for attachment to the top of the legging and may be of elastic material. The legging or the supporting tag of the garter may be provided with a series of fastening elements for adjusting the height at which the legging is worn on the leg. An auxiliary knee protector may be provided above the legging which protector is also attached to the garter and is fastened at the back of the leg by press fastenings.
Patent GB-1029644-A (GB)
Title: Trimming core for electrical coils
IPC: H01F17/04
Filed: 1965-02-15
Abstract: 1,029,644. Inductors. VOGT. & CO. KOMM. GES. Feb. 15, 1965 [Feb. 15, 1964], No. 6431/65. Heading H1T. A screwed trimming core for an inductance coil has a layer of phenol formaldehyde resin on its surface surmounted by a (partial) layer formed by strips of silicon rubber which are worked into the threads so that the thread edge is just covered, and are then vulcanized.
Patent GB-762062-A (GB)
Title: Device for use in feeding a finely divided solid material into a flowing gas
IPC: B01J8/28
Filed: 1955-03-04
Abstract: 762,062. Pneumatic conveyers. STAMICARBON N.V. March 4, 1955 [March 9, 1954; March 9, 1954], No. 6440/55. Class 78 (1). Finely-divided solid material is delivered to a vessel 1, Fig. 1, through which gas is passed upwardly by a pipe 5, the discharge end of which is surrounded by an open-ended convergent shroud 7. The material rests on a grid 3 and is maintained in the fluidized state by the gas passing therethrough. A number of compartments 1, Fig. 3, separated by grids 3, may be superimposed and a pipe 5 with shroud 7 provided between each pair of adjacent compartments. In a modification, Fig. 4, the feedpipe 5 is supplied with small amounts of gas through the pipes 14, 15. The gas, which rises through the vessel, passes through the pipe 11 into a dust separator 19 from which the solid particles are returned to the vessel through the pipe 5a.
Patent GB-1359126-A (GB)
Title: Plastics injection moulding machine
IPC: B29C45/70
Filed: 1973-02-09
Abstract: 1359126 Injection moulding machines ZARGUN FABRIK FUR SPEZIAL-KUNST-STOFFMASCHINEN GmbH [trading as ZARGUN FABRIK FUR SPECIAL - KUNST - STOFFMASOHINEN GmbH & CO KG] 9 Feb 1973 [11 Feb 1972] 6443/73 Heading B5A An injection moulding machine comprises a plurality of worm feed units each connected through its own valved duct 35, 45 with an injection mould (not shown), each worm feed unit comprising a continuously rotatable but axially fixed worm 15, 16. The valves in the ducts 35, 45 are preferably operable simultaneously by means of a lever 37 attached to a rotatable shaft 36. This shaft carries at its ends closing pins 34, 44 rotatable in sleeves 33, 43. The pins 34, 44 are drilled or grooved. The injection ducts 35, 45 are uniformly distributed over the injection mould which has fixed and movable parts mounted on support plates 38, 39 respectively. The plate 39 is moved to closed position by an hydraulic drive 60 and held under increased pressure by hydraulic drives 50, 70. The clamping drives are preferably disposed in line with the injection units.